rabbitmq 3.6集群搭建

0. 绪论

最近项目在做mq的技术选型，最终确定采用rabbitMq。需要对rabbitMq进行基准测试，所以在服务器上划出3个虚拟机节点。用这三台虚拟机做基准测试。（ps 以下命令都是用root 用户执行，如果不是root 用户那么命令前加sudo）

1. 集群规划

虚拟机操作系统采用的是centos 7.X

节点ip	主机名称
192.168.234.220	node1
192.168.234.221	node2
192.168.234.222	node3

配置项	值
CPU	4Core
MEMORY	10G
DISK	1T
NETWORK	NAT

2. 版本选择

erlang 版本是 19.3.6
rabbitmq 版本是 3.6.16

3. 环境准备

修改hostname

在 192.168.234.220 节点

# hostnamectl set-hostname node1
# cat >> /etc/hosts <<EOF
192.168.234.220   node1 
192.168.234.221   node2 
192.168.234.222   node3 
EOF

在 192.168.234.221 节点

# hostnamectl set-hostname node2
# cat >> /etc/hosts <<EOF
192.168.234.220   node1 
192.168.234.221   node2 
192.168.234.222   node3 
EOF

在 192.168.234.222 节点

# hostnamectl set-hostname node3
# cat >> /etc/hosts <<EOF
192.168.234.220   node1 
192.168.234.221   node2 
192.168.234.222   node3 
EOF

安装rabbitMq 依赖
erlang 19.3.6

google group https://groups.google.com/forum/#!msg/rabbitmq-users/kXkI-f3pgEw/UFowJIK4BQAJ

socat
logrotate

node1,node2,node3操作流程
erlang 采用官方提供的 Zero-dependency Erlang from RabbitMQ

Zero dependency Erlang RPM package for running RabbitMQ can be installed via Yum repositories on Bintray and Package Cloud as well as a direct download. As the name suggests, the package strips off some Erlang modules and dependencies that are not essential for running RabbitMQ.
英文不好不会翻译抱歉，提供官方链接 http://www.rabbitmq.com/install-rpm.html#install-erlang，自己研究下。

# cat > /etc/yum.repos.d/rabbitmq-erlang.repo <<EOF
[rabbitmq-erlang]
name=rabbitmq-erlang
baseurl=https://dl.bintray.com/rabbitmq-erlang/rpm/erlang/19/el/7
gpgcheck=1
gpgkey=https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc
repo_gpgcheck=0
enabled=1
EOF

// 安装erlang
# yum install erlang -y
// 安装  socat
# yum install  socat -y
// 安装 logrotate
# yum install logrotate -y

下载安装包(ps 因为采用3.6.16版本的rabbitMq,官网已经没有该版本配套的文档和软件包链接，通过github下载)

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rabbitMq 3.6.16 github 页面url https://github.com/rabbitmq/rabbitmq-server/releases?after=v3.7.8-rc.3

// 下载包
# wget https://github.com/rabbitmq/rabbitmq-server/releases/download/rabbitmq_v3_6_16/rabbitmq-server-3.6.16-1.el6.noarch.rpm

4. node1,node2,node3 安装rabbitMq

// 在node1 node2 node3 节点上用rpm 安装rabbitMq
rpm -ivh rabbitmq-server-3.6.16-1.el6.noarch.rpm
//  启动rabbitmq-server
systemctl start rabbitmq-server
systemctl enable rabbitmq-server

// 启用rabbitmq_management
# rabbitmq-plugins enable rabbitmq_management
// 创建管理用户
# rabbitmqctl add_user admin admin
// 将admin 用户赋予管理员角色
# rabbitmqctl set_user_tags admin administrator
// grant the 'admin' user permission to modify, write, and read all vhosts.
# rabbitmqctl set_permissions -p / admin  ".*" ".*" ".*"

5. 集群安装

copy erlang.cookie 在node1上执行

# scp /var/lib/rabbitmq/.erlang.cookie root@node2:/var/lib/rabbitmq/
# scp /var/lib/rabbitmq/.erlang.cookie root@node3:/var/lib/rabbitmq/
# rabbitmqctl cluster_status

node2,3上执行加入集群指令

# systemctl restart rabbitmq-server
# rabbitmqctl stop_app
# rabbitmqctl join_cluster rabbit@node1
# rabbitmqctl start_app

node1 查询集群状态

# rabbitmqctl cluster_status

Cluster status of node 'rabbit@node1'
[{nodes,[{disc,['rabbit@node1']},
         {ram,['rabbit@node3','rabbit@node2']}]},
 {running_nodes,['rabbit@node3','rabbit@node2','rabbit@node1']},
 {cluster_name,<<"rabbit@node1">>},
 {partitions,[]},
 {alarms,[{'rabbit@node3',[]},
          {'rabbit@node2',[]},
          {'rabbit@node1',[]}]}]
 // 如果出现以上提示集群加入成功

management web 如下
在这里插入图片描述

6. 配置镜像队列

node1 节点上执行

rabbitmqctl set_policy ha-all ".*" '{"ha-mode":"all"}'

或者是登录management 页面添加policy
在这里插入图片描述

参考链接：
http://www.rabbitmq.com/install-rpm.html
http://www.rabbitmq.com/clustering.html
http://www.rabbitmq.com/ha.html
https://www.howtoforge.com/how-to-set-up-rabbitmq-cluster-on-centos-7/